Physics (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 37 - 43 of 133

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Question number: 37

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

Above the Curie temperature, the susceptibility of a ferromagnetic substance varies

Choices

Choice (4) Response

a.

directly as the absolute temperature

b.

inversely as the square of absolute temperature

c.

inversely as the absolute temperature

d.

directly as the square of absolute temperature

Question number: 38

» Physics » Measurement

MCQ▾

Question

An instrument used to measure humidity is

Choices

Choice (4) Response

a.

Pyrheliometer

b.

Hygrometer

c.

Anemometer

d.

Thermometer

Question number: 39

» Physics » The Universe

MCQ▾

Question

The orbital speed of Jupiter is

Choices

Choice (4) Response

a.

less than the orbital speed of the Earth

b.

Zero

c.

equal to the orbital speed of the Earth

d.

greater than the orbital speed of the Earth

Question number: 40

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

A current flows in a conductor from East to West. The direction of the magnetic field at a point above the conductor is

Choices

Choice (4) Response

a.

towards South

b.

towards North

c.

towards East

d.

towards West

Question number: 41

» Physics » Motion and Force

MCQ▾

Question

The lines of force of uniform magnetic field

Choices

Choice (4) Response

a.

intersect

b.

must be convergent

c.

must be parallel to each other

d.

must be divergent

Question number: 42

» Physics » Magnetism & Electricity at Work

MCQ▾

Question

In a transformer, number of turns in the primary are 140 and that in secondary are 280. If current in primary is 4 A, then current in secondary is

Choices

Choice (4) Response

a.

4A

b.

10A

c.

2A

d.

6A

Question number: 43

» Physics » Light

MCQ▾

Question

Two thin lenses of focal lengths f 1 and f 2 are placed in contact. The focal length of the composite lenses will be

Choices

Choice (4) Response

a.

f1f2

b.

f1f2f1+f2

c.

f1+f2f1f2

d.

f1+f22

f Page
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